Toothbbtjsh



J. NOVAK.

roomaausu. APPLICATION FILED 001122. 1921- 1,417,407. PatentedMay23,1922.1

ATTORNEY JOSEPH NOVA K, OF CHICAGO, ILLINOIS.

TOOTHBRUSH.

Application filed October 22, 1921.

To all whom it may concern:

Be it known that I, JOSEPH NOVAK, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improvements in Tooth Brushes, of which thefollowing is a specification.

This invention relates to toothbrushes and an object of the invention isto provide a toothbrush b means of which the teeth can be thoroughlycleaned from the inside as 'well as from the outside, prevents theaccumulation of tartar on the inner surface of the teeth which occursfrom failure to properly clean the inner surface, other objects of theinvention are to provide a tooth brush which will prevent bleeding ofthe gums by regulating the pressure on the teeth by the brush, one whichwill prevent the soiling of a persons chin or face with the cream andone which is easy to operate and will permit the user to thoroughlycleanhis teeth in a comparatively short time.

Other objects of the invention will appear in the following detaileddescription taken in connection with the accompanyin drawing wherein:

Fig. l is a side elevation of the improved tooth brush.

Fig. 2 is a section taken on the line 2-2 of Fig. 1.

Referring more particularly to the drawings, the improved toothbrushcomprises a head structure 1 which is pivotally connected by means of arivet 2 to the handle 3 in such a manner as to permit tilting of thehandle relative to the head during the cleaning of the teeth.

The head structure 1 comprises spaced bristle carrying plates 4 and 5which are connected by a connecting plate or web 6 disposed intermediatethe side edges of the plates 4 and 5. The plates 4 and 5 are curvedlongitudinally so as to fit the curvature of the teeth of the user andthey have bristles 7 of approved construction secured thereto andprojecting inwardly from their inner surfaces. The free ends of thebristles carried by the plate 4 facing the free ends of the bristlescarried by the plate 5 and in Specification of Letters Patent.

Patented May 23, 1922. Serial No. 509,502.

spaced relation thereto sufficiently to permit proper engagement of thebristles with the teeth of the user.

The plate or web 6 is provided with a slot 8 curved to conform to thecurvature of the plates 4 and 5, and a tooth rest or gripper 10 isslidably mounted in the slot 8. The tooth rest or gripper 10 is formedof relatively soft rubber, cork or analogous material and its ends arerecessed to receive the edges of the slot 8 to prevent accidentaldisconnection of the gripper and plate 6.

In use, the improved toothbrush is inserted in the mouth of the userwith the bristles 7 carried by the plate 4 inwardly of the teeth andengaging the inner surface of the teeth while the bristles 7 of theplate 5 engage the outer surface of the teeth. Certain of the teeth arethen firmly gripped on the gripper 10 and the brush is moved from oneside of the mouth to the other thoroughl cleaning the front and the backof the teeth.

From the foregoing description taken in connection with the accompanyingdrawings it will be apparent that only a few strokes of the brushwill benecessary to thoroughly clean the teeth of the user and that it will notbe necessary to remove the brush from the mouth of the user during thecleaning operation as the bristles of the brush will engage all of theteeth during the movement of the brush across the mouth.

It is, of course, to be understood that the invention may be constructedin other man ners and the parts associated in different relations, andtherefore, I do not desire to be limited in any manner except as setforth in the claims hereunto appended.

Having thus described my invention what I claim is:

1. In a toothbrush a head structure comprising spaced connected platescurved to conform to the curvature of the users mouth, and bristlesattached to and extending inwardly from the facing surface of saidplates, said bristle carrying plates being connected by a web having anarcuate slot therein and a resilient member slidable in said slot andadapted to be gripped by the teeth of the user.

2. In a toothbrush, a head structure comprising spaced connected platescurved to conform to the curvature of the users mouth, and bristlesattached to and extending inwardly from the facing surface of said.plates, said bristle carrying plates being connected by a Web haying.-an-arcuate slot therein and a resilient member slidable in said slot andadapted to be gripped"by=the teeth of the user, and a handle pivotallycon- 10 nected to said head.

3. A tooth brush comprising curved plates connected by a Web, a handleconnected to the plates, bristles secured to the plates, and a yieldablemember slidably embracing the 15 Walls of an' arcuate slot in said web.

In testimony whereof I afiix my signature.

JOSEPH NOVAK.

